Is it going to be easy to get a taxi or shuttle to the train station ?because mi intention is to get back to vienna

At what time will be the last train on june 14? Can I take uber instead to Vienna in spite of the crowd?

Please let me know, basically I want to know the easiest way to get to vienna after the festival on june 14

can a taxi take me to vienna after the festival?

Here you can find the special train schedule from 2018 (the one from 2019 will be out about a week before the festival). Basically you should be able to go by shuttle to Nickelsdorf train station and with the special trains to Vienna Meidling after the last concert every day.